Other Parts Discussed in Thread: TMS320F2809
Hello TI Forum,
I am using a system that has worked on a different target board type, but with the same DSP and JTAG interface, yet on a new board, I get the following error upon attempting to connect through a JTAG emulator using CCS v3.3:
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Error connecting to the target
Error 0x80000200/-1152
Fatal Error during OCS
Processor blocked debug accesses
I/O Port = 240
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My system consists of:
CC3 v3.3
Signum JTAGjet-C2000F emulator
TMS320F2809 target with 24 MHz crystal.
14-pin JTAG interface. TCK,TMS,TDI,XRS/ all pulled high with 10K pullup resistors. EMU0,EMU1 each use 4.64k pullups, and 10nF pulldown caps. TRST/ is has 619 ohm pulldown resistor along with 10 nF pulldown cap.
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I verified connectivity between JTAG pins and the DSP. Everything looks to be in order..
The JTAGjet diagnostic from Signum passes all diagnostic tests, and recognizes the presence of the 2809 target without issue. However, in trying to connect thru CCS 3.3 debugger, we get "Error connecting to target, Error 0x80000200/-1152, Fatal Error during OCS, Processor blocked debug accesses, I/O Port=240"
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I connected oscilloscope to TCK,TDO,TDI,TMS and can see basically normal-looking activity on all. I compared this to the 2809 target that works.
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I have tried to connect both "with" and "without" TRST. Neither configuration works. I don't know the significance of signals EMU0, EMU1, if they are important or not.
Any suggestions are welcome !
